python making GIF

def creat_gif(image_list,gif_name):
    frames=[]
    for image_name in image_list:
        frames.append(imageio.imread(image_name))
        imageio.mimsave(gif_name,frames,'GIF',duration=0.2)


image_list=[]
for i in range(50):
    image_list.append(str(i)+'.png')

gif_name='plotgif.gif'
creat_gif(image_list,gif_name)